<template>
  <div>
    <el-form ref="deptForm" :model="form" :rules="ruleForm" label-width="120px">
      <el-form-item label="部门名称" prop="name">
        <el-input v-model="form.name" style="width:80%" placeholder="1-50个字符" />
      </el-form-item>
      <el-form-item label="部门编码" prop="code">
        <el-input v-model="form.code" style="width:80%" placeholder="1-50个字符" />
      </el-form-item>
      <el-form-item label="部门负责人" prop="manager">
        <el-select v-model="form.manager" style="width:80%" placeholder="请选择">
          <el-option v-for="item in employeesList" :key="item.id" :value="item.username" :label="item.username" />
        </el-select>
      </el-form-item>
      <el-form-item label="部门介绍" prop="introduce">
        <el-input v-model="form.introduce" style="width:80%" placeholder="1-300个字符" type="textarea" :rows="3" />
      </el-form-item>
      <el-form-item>
        <el-button type="primary" size="small" @click="hSubmit">确定</el-button>
        <el-button size="small" @click="$emit('close')">取消</el-button>
      </el-form-item>
    </el-form>
  </div>
</template>

<script>
import { getEmployeesSimple } from '@/api/employees'
import { addDepartments, getDepartmentDetail, updateDepartments } from '@/api/departments'
export default {
  props: {
    id: {
      type: String,
      required: true
    },
    isEdit: {
      type: Boolean,
      required: true
    },
    originList: {
      type: Array,
      required: true
    }
  },
  data() {
    // 校验部门的编码
    const validCode = (rule, value, callback) => {
      // 把 输入框的 code 筛选出来 添加到新数组
      // console.log(this.originList)
      let existCodeList = this.originList.map(item => item.code)
      // 编辑的状态先移除自己的编码
      if (this.isEdit) existCodeList = this.originList.filter(item => item.id !== this.id).map(item => item.code)
      // console.log(existCodeList)
      // 判断 输入的内容在不在数组中 存在就提示用户 不存在则放行
      if (existCodeList.includes(value)) {
        callback(new Error('部门编码已存在'))
      } else {
        callback()
      }
    }
    // 校验部门的名称
    const validName = (rule, value, callback) => {
      // 先筛选出 点击的所有子部门 再取出他们的 name 属性
      let existNameList = this.originList.filter(item => item.pid === this.id).map(item => item.name)
      // 点击编辑时 进行判断同级的name属性 是否存在
      if (this.isEdit) {
        // 找出当前点击的对象
        const curObj = this.originList.find(item => item.id === this.id)
        // 筛选出同级
        const brothers = this.originList.filter(item => item.pid === curObj.pid)
        // 排除自己  再进行 map 映射出 对象里面的 name 属性
        existNameList = brothers.filter(item => item.id !== this.id).map(item => item.name)
      }
      if (existNameList.includes(value)) {
        callback(new Error('部门名称已存在'))
      } else {
        callback()
      }
    }
    return {
      form: {
        name: '',
        code: '',
        manager: '',
        introduce: ''
      },
      ruleForm: {
        name: [
          { required: true, message: '部门名称不能为空', trigger: 'blur' },
          { min: 1, max: 50, message: '请输入长度是1~50的字符', trigger: 'blur' },
          { validator: validName, trigger: 'blur' }
        ],
        code: [
          { required: true, message: '部门编码不能为空', trigger: 'blur' },
          { min: 1, max: 50, message: '请输入长度是1~50的字符', trigger: 'blur' },
          { validator: validCode, trigger: 'blur' }
        ],
        manager: [
          { required: true, message: '部门负责人不能为空', trigger: 'blur' },
          { min: 1, max: 50, message: '请输入长度是1~300的字符', trigger: 'blur' }
        ],
        introduce: [
          { required: true, message: '请选择部门负责人', trigger: ['blur', 'change'] }
        ]
      },
      employeesList: []
    }
  },
  // watch: {
  //   'id': function(newVal, oldVal) {
  //     console.log(newVal, oldVal)
  //     this.loadDepartmentDetail()
  //   }
  // },
  created() {
    this.loadEmployees()
    if (this.isEdit) this.loadDepartmentDetail()
  },
  methods: {
    // 清空表单
    resetForm() {
      this.$refs.deptForm.resetFields()
    },
    // 获取当前部门的数据
    async loadDepartmentDetail() {
      try {
        const res = await getDepartmentDetail(this.id)
        // console.log(res)
        this.form = res.data
      } catch (error) {
        console.log(error)
      }
    },
    hSubmit() {
      // 兜底校验
      this.$refs.deptForm.validate(valid => {
        if (!valid) return
        // isEdit? '编辑操作' : '新增操作'
        this.isEdit ? this.doEdit() : this.doAdd()
      })
    },
    // 编辑部门
    async doEdit() {
      try {
        const res = await updateDepartments(this.form)
        // console.log(res)
        if (res.code !== 10000) return this.$message.warning(res.message)
        this.$message.success(res.message)
        this.$emit('success')
      } catch (error) {
        console.log(error)
      }
    },
    // 新增子部门
    async doAdd() {
      try {
        const res = await addDepartments({ ...this.form, pid: this.id })
        // console.log(res)
        if (res.code !== 10000) return this.$message.warning(res.message)
        this.$message.success(res.message)
        this.$emit('success')
      } catch (error) {
        console.log(error)
      }
    },
    // 获取部门负责人数据
    async loadEmployees() {
      try {
        const res = await getEmployeesSimple()
        // console.log(res)
        if (res.code === 10000) {
          this.employeesList = res.data
        }
      } catch (error) {
        console.log(error)
      }
    }
  }
}
</script>
